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Finding the Third Proportional to 8,484 and 15,900

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Solution

The third proportional to 8,484 and 15,900 is: 29,798.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,484 : 15,900 = 15,900 : x
  2. Step 2: Convert to fraction form
    8,484/15,900 = 15,900/x
  3. Step 3: Cross multiply
    8,484x = 15,900 × 15,900
  4. Step 4: Simplify right side
    8,484x = 252,810,000
  5. Step 5: Solve for x
    x = 252,810,000/8,484
  6. Step 6: Final answer
    x = 29,798.44

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.